Update list of Neutron lieuetenants
Update list of Neutron lieuetenants

This patch removes some inactive team members from list of
liuetenants of various areas in Neutron and some stadium projects
and sets in their place people who are now actively working on
the project.

For networking-sfc I don't have any info from Cathy who was
previous lieutenant if she can handle that role for next cycle
and I also don't have any response from other members of
networking-sfc-core group so I left this project without
liuetenant for now.

Change-Id: I3cf3298a5f1d3217f7b3b1fdb345e51007d3cff8

openstack/neutron,mahak/neutron,mahak/neutron,openstack/neutron,openstack/neutron,mahak/neutron